Forrix

Forrix stood among the three Triarchs who commanded the Iron Warriors beneath Perturabo himself, senior officers of the Trident whose word carried the primarch's own authority across the Legion's scattered grand companies. A veteran of more sieges than any tally could hold, he had risen through decades of thankless war to become one of the IV Legion's most respected and battle-hardened commanders, a living embodiment of the endurance the Iron Warriors prized above all virtues.

His long service had left Forrix as grimly pragmatic as his primarch, a warrior who measured victory in walls broken and losses endured rather than glory won. When Perturabo turned against the Emperor, Forrix followed as a matter of iron loyalty to his Legion and its master, carrying his formidable experience into the war on the side of treachery. Through the Heresy he directed some of the IV Legion's most punishing assaults, applying a lifetime of siege-lore to the destruction of loyalist strongholds. In Forrix the Iron Warriors found their ideal officer: unimaginative perhaps, but utterly reliable, and impossible either to impress or to break.